/* ==========================================================
   serinex.cn · 樱桃影视 整站样式
   会议资料风：深墨蓝页头 + 樱桃红强调 + 纸张白背景
   ========================================================== */

/* ----------------------------------------------
   Base · 基础变量与重置
   ---------------------------------------------- */
:root {
  --ink-blue: #1a2b3c;
  --ink-blue-deep: #13202e;
  --cherry: #c22f3a;
  --cherry-dark: #a82630;
  --cherry-light: #f6e3e4;
  --paper: #ffffff;
  --gray-bg: #f4f5f7;
  --gray-line: #e2e4e8;
  --gray-text: #5b6572;
  --text-main: #2b3440;
  --text-heading: #1f2a36;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-w: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 3px rgba(20, 30, 45, 0.06);
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--cherry);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--cherry-dark);
}

ul,
ol {
  list-style: none;
}

figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--text-heading);
  line-height: 1.35;
  font-weight: 700;
}

h1 {
  font-size: 30px;
  letter-spacing: 0.01em;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 17px;
}

p {
  margin-bottom: 0.8em;
}

p:last-child {
  margin-bottom: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ----------------------------------------------
   Layout · 全站骨架
   ---------------------------------------------- */
.site-header {
  background: var(--ink-blue);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--paper);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-link:hover {
  color: var(--paper);
}

.brand-name {
  position: relative;
}

.brand-name::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 2px;
  background: var(--cherry);
  border-radius: 2px;
}

.site-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav .nav-list li a {
  display: block;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.site-nav .nav-list li a:hover {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.1);
}

.site-nav .nav-list li a.is-current {
  color: var(--paper);
  background: var(--cherry);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.site-main {
  min-height: 520px;
}

.site-footer {
  background: var(--ink-blue-deep);
  color: rgba(255, 255, 255, 0.72);
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--paper);
  margin-bottom: 12px;
}

.footer-info p:not(.footer-brand) {
  font-size: 14px;
  line-height: 1.8;
  max-width: 460px;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
  margin-bottom: 12px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer-col ul li a:hover {
  color: var(--paper);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* 内页统一骨架 */
.inner-main {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 32px 24px 56px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 20px;
  color: var(--gray-text);
}

.breadcrumb a {
  color: var(--gray-text);
}

.breadcrumb a:hover {
  color: var(--cherry);
}

.breadcrumb-sep {
  color: #aab2bc;
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

.page-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-line);
}

.page-title {
  font-size: 30px;
  margin-bottom: 10px;
}

.page-description {
  font-size: 15px;
  color: var(--gray-text);
  max-width: 720px;
  line-height: 1.8;
}

.section-title {
  font-size: 22px;
  margin-bottom: 16px;
  position: relative;
  padding-left: 14px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.14em;
  width: 4px;
  height: 0.9em;
  background: var(--cherry);
  border-radius: 2px;
}

.section-lead,
.section-intro,
.section-desc {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 20px;
  max-width: 720px;
}

/* 侧栏通用 */
.sidebar-area,
.content-aside,
.content-side,
.content-sidebar,
.sidebar {
  background: var(--gray-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--gray-line);
}

.sidebar-title {
  font-size: 17px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--cherry);
}

.sidebar-intro {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 18px;
}

/* 相关链接横条 */
.related-links {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--gray-line);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-heading);
  margin-right: 4px;
}

.related-links-item {
  font-size: 14px;
  padding: 6px 14px;
  background: var(--gray-bg);
  border-radius: 20px;
  border: 1px solid var(--gray-line);
  color: var(--text-main);
}

.related-links-item:hover {
  border-color: var(--cherry);
  color: var(--cherry);
}

/* 通用按钮 */
.btn-primary {
  display: inline-block;
  padding: 11px 28px;
  background: var(--cherry);
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 0;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--cherry-dark);
  color: var(--paper);
}

.btn-secondary {
  display: inline-block;
  padding: 11px 28px;
  background: transparent;
  color: var(--ink-blue);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-blue);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.btn-secondary:hover {
  background: var(--ink-blue);
  color: var(--paper);
}

/* 通用图文容器 */
.content-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-line);
  background: var(--gray-bg);
}

.content-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-media-inline {
  margin-bottom: 24px;
}

.content-media figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--gray-text);
  background: var(--paper);
  border-top: 1px solid var(--gray-line);
}

/* ----------------------------------------------
   Components · 通用组件
   ---------------------------------------------- */

/* 首页首屏 */
.hero-section {
  background: var(--ink-blue);
  color: var(--paper);
  padding: 64px 24px 48px;
  position: relative;
}

.hero-section::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-section > * {
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
}

.hero-section .hero-copy {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 32px;
}

.hero-section h1 {
  color: var(--paper);
  font-size: 36px;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.hero-section h1 .accent {
  color: #ff6b74;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-section .btn-primary {
  background: var(--cherry);
}

.hero-section .btn-primary:hover {
  background: #d43a45;
}

.hero-section .btn-secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--paper);
}

.hero-section .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--paper);
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.hero-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.hero-hint {
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 0;
}

/* 首页导航带 */
.nav-strip {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 48px 24px 24px;
}

.nav-strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.nav-card {
  background: var(--paper);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.nav-card:hover {
  box-shadow: var(--shadow-card);
  border-color: #c9cdd3;
}

.nav-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-card h3::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cherry);
  border-radius: 2px;
  flex-shrink: 0;
}

.nav-card p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 14px;
}

.nav-card a {
  font-size: 14px;
  font-weight: 600;
}

/* 首页专题预览 */
.collections-preview {
  background: var(--gray-bg);
  padding: 48px 24px;
}

.collections-preview > .section-title,
.collections-preview > .section-intro {
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
}

.preview-grid {
  max-width: var(--container-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.preview-card {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--gray-line);
  transition: box-shadow var(--transition), transform var(--transition);
}

.preview-card:hover {
  box-shadow: 0 4px 16px rgba(20, 30, 45, 0.08);
  transform: translateY(-2px);
}

.preview-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.preview-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--cherry);
  background: var(--cherry-light);
  border-radius: 12px;
  padding: 3px 12px;
  margin-bottom: 12px;
}

.preview-card p:not(.preview-tag) {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 14px;
}

.preview-card a {
  font-size: 14px;
  font-weight: 600;
}

/* 首页频道地图入口 */
.channels-entry {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 56px 24px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.entry-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-line);
}

.entry-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.entry-copy h2 {
  font-size: 24px;
  margin-bottom: 14px;
}

.entry-copy p {
  font-size: 15px;
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 12px;
  max-width: 520px;
}

.entry-copy .btn-primary {
  margin-top: 10px;
}

/* 首页观看指南条 */
.guide-strip {
  background: var(--ink-blue);
  color: var(--paper);
  padding: 48px 24px;
  text-align: center;
}

.guide-strip .section-title {
  color: var(--paper);
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
}

.guide-strip .section-title::before {
  background: #ff6b74;
}

.guide-steps {
  max-width: var(--container-w);
  margin: 0 auto 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.guide-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: left;
}

.guide-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--cherry);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.guide-step h3 {
  color: var(--paper);
  font-size: 15px;
  margin-bottom: 8px;
}

.guide-step p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.7;
  margin: 0;
}

.guide-strip > .btn-primary {
  background: var(--cherry);
}

.guide-strip > .btn-primary:hover {
  background: #d43a45;
}

/* 频道地图页 */
.channel-index-section,
.channel-detail-section {
  margin-bottom: 40px;
}

.channel-index-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.index-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  transition: border-color var(--transition), background var(--transition);
}

.index-item a:hover {
  border-color: var(--cherry);
  background: var(--cherry-light);
}

.item-category {
  font-weight: 600;
}

.item-count {
  font-size: 13px;
  color: var(--gray-text);
  background: var(--paper);
  padding: 2px 10px;
  border-radius: 10px;
}

.channel-group {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--gray-line);
}

.channel-group:last-child {
  border-bottom: 0;
}

.group-text h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.group-text p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
  margin-bottom: 10px;
}

.group-text a {
  font-size: 14px;
  font-weight: 600;
}

.group-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gray-line);
}

.group-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.group-figure figcaption {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--gray-text);
  background: var(--paper);
  border-top: 1px solid var(--gray-line);
}

.topic-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-line);
}

.topic-list li:last-child {
  border-bottom: 0;
}

.topic-list h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.topic-list p {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.sidebar-link {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-line);
}

.sidebar-link a {
  font-size: 14px;
  font-weight: 600;
}

/* 专题片单页 */
.collection-list-section {
  margin-bottom: 40px;
}

.collection-item {
  padding: 24px;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  background: var(--paper);
  transition: box-shadow var(--transition);
}

.collection-item:hover {
  box-shadow: var(--shadow-card);
}

.collection-text h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.collection-theme {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--cherry);
  background: var(--cherry-light);
  border-radius: 12px;
  padding: 3px 12px;
  margin-bottom: 12px;
}

.collection-text p:not(.collection-theme) {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
  margin-bottom: 8px;
}

.list-footer-link {
  margin-top: 16px;
  font-size: 14px;
}

.structure-block {
  background: var(--gray-bg);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.structure-block h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.structure-block p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
  margin: 0;
}

.structure-note {
  font-size: 14px;
  margin-top: 16px;
}

.scene-group {
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-line);
}

.scene-group:last-child {
  border-bottom: 0;
}

.scene-group h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.scene-group p {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.sidebar-link a {
  font-size: 14px;
  font-weight: 600;
}

/* 观看指南页 */
.guide-steps-section {
  margin-bottom: 40px;
}

.steps-list {
  margin-bottom: 24px;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--gray-line);
}

.step-item:last-child {
  border-bottom: 0;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--ink-blue);
  color: var(--paper);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
}

.step-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
  margin: 0;
}

.guide-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-line);
}

.guide-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.guide-media figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--gray-text);
  background: var(--gray-bg);
  border-top: 1px solid var(--gray-line);
}

.faq-list {
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--gray-line);
  background: var(--paper);
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-heading);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: background var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--cherry);
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item summary:hover {
  background: var(--gray-bg);
}

.faq-item p,
.faq-item .faq-content {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
}

.faq-item .faq-content {
  padding-top: 0;
}

.side-block {
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-line);
}

.side-block:last-child {
  border-bottom: 0;
}

.side-block h2 {
  font-size: 16px;
  margin-bottom: 10px;
}

.side-block p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 10px;
}

.side-list li {
  padding: 6px 0;
  font-size: 13px;
  color: var(--gray-text);
  position: relative;
  padding-left: 14px;
}

.side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 6px;
  height: 6px;
  background: var(--cherry);
  border-radius: 2px;
}

.side-block a {
  font-size: 14px;
  font-weight: 600;
}

/* 整理进展页 */
.progress-status-section,
.coverage-section,
.priority-section {
  margin-bottom: 40px;
}

.status-list {
  margin-top: 20px;
}

.status-item {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-line);
}

.status-item:last-child {
  border-bottom: 0;
}

.status-marker {
  padding-top: 4px;
}

.status-dot {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-dot.is-done {
  background: #2e9e5b;
}

.status-dot.is-pending {
  background: #e0a23c;
}

.status-dot.is-planned {
  background: #8b95a3;
}

.status-body h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.status-body p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.coverage-group {
  margin-bottom: 28px;
}

.coverage-group h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.coverage-group > p {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 14px;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.coverage-card {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 500;
}

.coverage-note {
  font-size: 14px;
  margin-top: 16px;
}

.priority-list {
  border-top: 1px solid var(--gray-line);
}

.priority-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-line);
}

.priority-order {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--cherry-light);
  color: var(--cherry);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.priority-content h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.priority-content p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.sidebar-block h2 {
  font-size: 16px;
  margin-bottom: 10px;
}

.sidebar-block > p {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 14px;
}

.sidebar-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-line);
}

.sidebar-list li:last-child {
  border-bottom: 0;
}

.sidebar-list-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.sidebar-list li p {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.6;
  margin: 0;
}

.sidebar-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--gray-line);
}

.sidebar-note a {
  font-size: 14px;
  font-weight: 600;
}

/* 收录说明页 */
.layout-shell {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 32px 24px 56px;
}

.content-section {
  margin-bottom: 36px;
}

.source-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.source-item {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.source-item h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.source-item p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.75;
  margin: 0;
}

.boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.boundary-item {
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  background: var(--paper);
}

.boundary-item h3 {
  font-size: 15px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.boundary-item h3::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cherry);
  border-radius: 2px;
  flex-shrink: 0;
}

.boundary-item p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.content-figure {
  margin: 32px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-line);
}

.content-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.content-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--gray-text);
  background: var(--gray-bg);
  border-top: 1px solid var(--gray-line);
}

.related-section {
  margin-bottom: 0;
}

.related-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  border-top: 0;
  padding: 0;
}

.related-links a {
  display: inline-block;
  padding: 8px 18px;
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-main);
}

.related-links a:hover {
  border-color: var(--cherry);
  color: var(--cherry);
}

.content-aside h2 {
  font-size: 16px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--cherry);
}

.aside-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-line);
  font-size: 14px;
  color: var(--text-main);
  position: relative;
  padding-left: 16px;
  line-height: 1.65;
}

.aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.9em;
  width: 6px;
  height: 6px;
  background: var(--cherry);
  border-radius: 2px;
}

.aside-list li:last-child {
  border-bottom: 0;
}

/* 帮助反馈页 */
.page-top {
  background: var(--gray-bg);
  border-bottom: 1px solid var(--gray-line);
}

.page-top .container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.faq-section,
.feedback-section {
  margin-bottom: 40px;
}

.feedback-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.feedback-step {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  padding: 18px;
}

.feedback-step .step-number {
  width: 32px;
  height: 32px;
  background: var(--cherry);
  font-size: 14px;
}

.step-body h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.step-body p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 0;
}

.feedback-note {
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--cherry-light);
  border-radius: var(--radius-md);
  border: 1px solid #efd0d2;
}

.feedback-note p {
  font-size: 14px;
  color: var(--text-main);
  margin: 0;
}

.feedback-note a {
  font-weight: 600;
}

.sidebar-card {
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-line);
}

.sidebar-card:last-child {
  border-bottom: 0;
}

.sidebar-card h2 {
  font-size: 16px;
  margin-bottom: 12px;
}

.sidebar-links li {
  margin-bottom: 8px;
}

.sidebar-links li a {
  font-size: 14px;
  color: var(--text-main);
  display: inline-block;
  padding: 4px 0;
}

.sidebar-links li a:hover {
  color: var(--cherry);
}

/* 404 页 */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-panel {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--cherry);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--gray-text);
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ----------------------------------------------
   Pages · 页面级微调
   ---------------------------------------------- */

/* 首页主视觉深色区内的标题强调 */
.site-home .hero-section h1 .accent {
  color: #ff6b74;
}

/* 内页统一背景 */
.site-inner .inner-main {
  background: var(--paper);
}

/* 频道地图页交替排列 */
.page-channels .channel-group:nth-child(even) .group-figure {
  order: -1;
}

/* 整理进展页侧栏与主内容间距 */
.page-progress .content-primary {
  min-width: 0;
}

/* 收录说明页主内容与侧栏 */
.page-inclusion .layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.page-inclusion .site-main {
  min-width: 0;
}

/* ----------------------------------------------
   Responsive · 响应式
   ---------------------------------------------- */

/* 平板 */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 28px;
  }

  .hero-section .hero-copy {
    gap: 32px;
  }

  .channels-entry {
    gap: 32px;
  }

  .page-inclusion .layout-shell {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 28px;
  }
}

/* 手机 */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    min-height: 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--ink-blue-deep);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    padding: 8px 16px 16px;
    gap: 0;
  }

  .site-nav .nav-list.is-open {
    display: flex;
  }

  .site-nav .nav-list li {
    width: 100%;
  }

  .site-nav .nav-list li a {
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-nav .nav-list li:last-child a {
    border-bottom: 0;
  }

  .inner-main {
    padding: 24px 16px 40px;
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .page-inclusion .layout-shell {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 16px 40px;
  }

  .page-title {
    font-size: 24px;
  }

  .hero-section {
    padding: 40px 16px 32px;
  }

  .hero-section .hero-copy {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-section h1 {
    font-size: 28px;
  }

  .hero-figure img {
    height: 200px;
  }

  .nav-strip {
    padding: 32px 16px 16px;
  }

  .nav-strip-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .collections-preview {
    padding: 32px 16px;
  }

  .preview-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .channels-entry {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px;
  }

  .entry-figure img {
    height: 200px;
  }

  .guide-strip {
    padding: 32px 16px;
  }

  .guide-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 16px 24px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .related-links {
    padding: 16px;
    gap: 10px;
  }

  /* 频道地图 */
  .channel-index-list {
    grid-template-columns: 1fr;
  }

  .channel-group {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-channels .channel-group:nth-child(even) .group-figure {
    order: 0;
  }

  .group-figure img {
    height: 160px;
  }

  /* 专题片单 */
  .source-grid,
  .boundary-grid {
    grid-template-columns: 1fr;
  }

  /* 观看指南 */
  .step-item {
    grid-template-columns: 40px 1fr;
    gap: 12px;
  }

  .step-number {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }

  .guide-media img {
    height: 180px;
  }

  /* 整理进展 */
  .coverage-grid {
    grid-template-columns: 1fr;
  }

  .feedback-steps {
    grid-template-columns: 1fr;
  }

  .content-figure img {
    height: 180px;
  }
}

/* 小屏手机 */
@media (max-width: 390px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    text-align: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .error-code {
    font-size: 56px;
  }
}